Elo TouchSystems E247, E249, E246, E24A, E248 Operation Manual

Serial interfaces to optic cable multiplexers

ELO E246, ELO E247,
ELO E248, ELO E249,

ELO E24A, ELO E24B

Operation manual

ELOE246,7,8,9,A,BZKE001

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1.0 Introduction...........................................................................3

1.1 Use of the multiplexer............................................................3

2.0 Operation principles...............................................................3

3.0 Installation.............................................................................3

3.1 Metallic interfaces connection...............................................3

3.2 RS232 interface......................................................................4

3.3 RS422 interface......................................................................5

3.4 Two multiplexers interconnection..........................................5

3.5 Power Connection..................................................................6

4.0 Specification..........................................................................6

4.1 Parameters.............................................................................6

4.2 Dimensions and weight..........................................................6

4.3 Other......................................................................................6

5.0 Testing...................................................................................6

6.0 Troubleshooting.....................................................................7

7.0 Ordering information............................................................7

7.1 Related products.....................................................................7

ELOE246,7,8,9,A,BZKE001

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1.0 Introduction

Fiber Optic (SINGLE MODE and/or MULTI MODE) has been used for signal
transmission in automation for communication more and more often.
The main advantage of Fiber Optic is its immunity to electromagnetic
interference, slight radiation and high transmission capacity

1.1 Use of the multiplexer

Using a pair of multiplexers several absolutely independent transmission channels
over one optic line can be estabilished. The individual channels can be used that
way:

- several independent simultaneous applications (according to the number of
channels),

- simultaneous data transfer over one channel and control, status or clock signals
over the rest of channels.
Multiplexer can work without any setting.

2.0 Operation principles

Multiplexer asociates following serial channels to one pair of fibers:
Interface / model E246 E247 E248 E249 E24A E24B
Number of RS232 4 4 4 -- -- -­ Number of RS422 -- -- -- 2 2 2
The data rate in one channel is absolutely independent on other channels and the
data rate can be any range from zero to maximum 230 000 kbps.
Multiplexer is independent on communication protocol.

3.0 Installation

There are three different problems of installation to discuss: RS232 or RS422 link
connection, optic fiber link connection, respectively two multiplexers
interconnecting and power supply connection.

3.1 Metallic interfaces connection

All interfaces except optic fiber and supply input are taken out to DB9 female
connector. The connector description is in tables shown in following chapters.
The interfaces concentrated to one connector can be distributed to separate
connectors by ELO E24E and ELO E24F cables.